GeForce GTX 460 1GB vs Radeon HD 5450

Intro

Compare that to the Radeon HD 5450, which comes with a GPU core clock speed of 650 MHz, and 512 MB of DDR3 memory set to run at 800 MHz through a 64-bit bus. It also is comprised of 80(16x5) SPUs, 8 TAUs, and 4 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5450		19 Watts
GeForce GTX 460 1GB		160 Watts
	Difference: 141 Watts (742%)

Memory Bandwidth

The GeForce GTX 460 1GB should theoretically perform quite a bit faster than the Radeon HD 5450 in general. (explain)

GeForce GTX 460 1GB		115200 MB/sec
Radeon HD 5450		12800 MB/sec
	Difference: 102400 (800%)

Texel Rate

The GeForce GTX 460 1GB is quite a bit (approximately 627%) more effective at anisotropic filtering than the Radeon HD 5450. (explain)

GeForce GTX 460 1GB		37800 Mtexels/sec
Radeon HD 5450		5200 Mtexels/sec
	Difference: 32600 (627%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 460 1GB is the winner, by a large margin. (explain)

GeForce GTX 460 1GB		21600 Mpixels/sec
Radeon HD 5450		2600 Mpixels/sec
	Difference: 19000 (731%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in megabytes per second) that can be moved across the external memory interface within a second. The number is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.